Question

An alom of has a mass which 3.33 times the mas of carbon-12.wat is the at mass of argon!?

Answer 1

Mass of an atom of carbon-12 =12.0 Mass of an atom of argon=3.33×12.0u= 40.0u So,therfore the of mass of argon is 40.0u

Answer 2

Mass of carbon atom = 12.
Mass of the argon = 12 × 3.33
                           = 39.96 u
                           = 40 u